|
Solution analyses for strontium sorption to amorphous silica in air, I = 0.005 M NaCl and T = 25°C. |
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| Final pH |
Surface Area m2 L-1 |
Initial [Sr] M |
Final [Sr] M |
%Sr sorbed |
Γ Sr sorbed Mol m-2 |
Total Dissolved Carbonate M |
|
|
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| Total Sr = 10-4 M aged for 2 days |
± 5% |
|||||
|
|
||||||
| 6.85 |
10857 |
1.14 × 10-4 |
5.28 × 10-5 |
53.9 |
5.62 × 10-9 |
3.84 × 10-5 |
| 6.88 |
10983 |
1.16 × 10-4 |
5.04 × 10-5 |
56.7 |
5.94 × 10-9 |
3.93 × 10-5 |
| 7.16 |
10815 |
1.12 × 10-4 |
1.57 × 10-5 |
86.4 |
8.87 × 10-9 |
5.47 × 10-5 |
| 7.33 |
9931 |
1.05 × 10-4 |
2.87 × 10-5 |
72.9 |
7.64 × 10-9 |
5.80 × 10-5 |
| 7.74 |
9472 |
9.72 × 10-5 |
1.94 × 10-5 |
80.4 |
8.21 × 10-9 |
6.23 × 10-5 |
| 7.86 |
8468 |
8.92 × 10-5 |
1.81 × 10-5 |
80.0 |
8.39 × 10-9 |
2.45 × 10-4 |
| 7.97 |
8962 |
8.89 × 10-5 |
1.35 × 10-5 |
85.3 |
8.41 × 10-9 |
2.60 × 10-4 |
| 8.21 |
8502 |
8.41 × 10-5 |
7.74 × 10-6 |
91.3 |
8.98 × 10-9 |
2.21 × 10-4 |
| 8.36 |
8501 |
7.97 × 10-5 |
5.24 × 10-6 |
94.0 |
8.77 × 10-9 |
2.25 × 10-4 |
| 8.48 |
8504 |
7.40 × 10-5 |
3.34 × 10-6 |
96.1 |
8.31 × 10-9 |
2.32 × 10-4 |
| 8.64 |
8458 |
7.07 × 10-5 |
2.54 × 10-6 |
97.0 |
8.05 × 10-9 |
1.54 × 10-4 |
| 8.70 |
8529 |
6.91 × 10-5 |
2.04 × 10-6 |
97.7 |
7.87 × 10-9 |
1.35 × 10-4 |
| 8.76 |
8484 |
6.65 × 10-5 |
1.67 × 10-6 |
98.1 |
7.65 × 10-9 |
1.44 × 10-4 |
| 6.20 |
8830 |
9.69 × 10-5 |
8.19 × 10-5 |
15.6 |
1.70 × 10-9 |
7.51 × 10-6 |
| 6.59 |
9879 |
1.03 × 10-4 |
7.35 × 10-5 |
29.0 |
3.02 × 10-9 |
2.24 × 10-5 |
| 7.00 |
10715 |
1.14 × 10-4 |
5.89 × 10-5 |
48.8 |
5.18 × 10-9 |
3.36 × 10-5 |
| 7.34 |
11091 |
1.06 × 10-4 |
4.12 × 10-5 |
61.5 |
5.85 × 10-9 |
5.96 × 10-5 |
| 7.56 |
10071 |
9.88 × 10-5 |
2.94 × 10-5 |
70.7 |
6.89 × 10-9 |
6.61 × 10-5 |
| 7.50 |
10733 |
1.02 × 10-4 |
3.59 × 10-5 |
65.3 |
6.20 × 10-9 |
1.39 × 10-4 |
| 7.90 |
9476 |
8.96 × 10-5 |
1.78 × 10-5 |
80.6 |
7.58 × 10-9 |
1.93 × 10-4 |
| 8.13 |
9062 |
8.45 × 10-5 |
1.15 × 10-5 |
86.9 |
8.06 × 10-9 |
1.94 × 10-4 |
| 8.24 |
8935 |
8.04 × 10-5 |
1.19 × 10-5 |
85.7 |
7.66 × 10-9 |
2.09 × 10-4 |
| 8.44 |
8563 |
7.28 × 10-5 |
4.32 × 10-6 |
94.7 |
8.00 × 10-9 |
2.70 × 10-4 |
| 8.67 |
8495 |
6.37 × 10-5 |
2.85 × 10-6 |
96.2 |
7.17 × 10-9 |
2.36 × 10-4 |
| 8.89 |
8491 |
5.66 × 10-5 |
1.32 × 10-6 |
98.5 |
6.51 × 10-9 |
2.34 × 10-4 |
| 8.98 |
8696 |
5.34 × 10-5 |
1.12 × 10-6 |
98.8 |
6.02 × 10-9 |
2.06 × 10-4 |
Carroll et al. Geochemical Transactions 2008 9:2 doi:10.1186/1467-4866-9-2 |
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